package cn.fanyamin.servlet;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

public class EncodingFilter implements Filter {
	protected String encoding=null;
	protected FilterConfig config;
	public void init(FilterConfig filterConfig) throws ServletException{
		this.config=filterConfig;
	}
	
	public void doFilter(ServletRequest request,ServletResponse response,FilterChain chain) throws IOException,ServletException{
		if(request.getCharacterEncoding()==null){
			String encode=getEncoding();
			if(encode!=null){
				request.setCharacterEncoding(encode);
			}
		}
		chain.doFilter(request,response);
	}
	
	public void destroy(){
		
	}

	public String getEncoding() {
		return encoding;
	}

	public void setEncoding(String encoding) {
		this.encoding = encoding;
	}
}
